which should help narrow it down pretty efficiently (I'm marking -git6 as bad, on the logic that the bug being chased is "corruption _or_ jumping to address 0". It's much harder if you want to chase down just one bug, when the other bug might stand in your way).

And yes, that range contains not just powerpc updates, but also PCI layer, mutex changes, crypto and V4L/DVB. Doing just three or four bisection trials would help narrow it down a lot (now it's 448 commits - doing three bisctions should narrow it down into less than 60 commits and likely which subsystem, while doing another bisection or two would get us into a few tens of commits).